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Sample MB-291
NavDat sample number 75636 · RHYODACITE
Sample
| Sample ID | MB-291 |
|---|
| Rock name | RHYODACITE |
|---|
| Rock type | VOLCANIC |
|---|
| Composition | FELSIC |
|---|
| Material | IGNEOUS |
|---|
Location
| Latitude | 48.83 |
|---|
| Longitude | -121.721 |
|---|
| State / province | washington |
|---|
| Formation | Rhyodacite of Ptarmigan dome |
|---|
Age
| Age (Ma) | Error | Min | Max | Geologic age | Dated by |
|---|
| 1.06 |
|
0.99 |
1.13 |
|
|
Analyses
Whole rock
| Item | Value | Std. dev. | Unit | Method |
|---|
| SIO2 | 71.25 | | WT% | XRF |
| TIO2 | 0.4 | | WT% | XRF |
| AL2O3 | 15.22 | | WT% | XRF |
| FEOT | 2.23 | | WT% | XRF |
| MNO | 0.04 | | WT% | XRF |
| MGO | 0.52 | | WT% | XRF |
| CAO | 1.78 | | WT% | XRF |
| NA2O | 4.92 | | WT% | XRF |
| K2O | 3.1 | | WT% | XRF |
| P2O5 | 0.15 | | WT% | XRF |
| LOI | 1.04 | | WT% | XRF |
